Research · Performance & training · October 9, 2026

Exercise treats depression. The famous headline still overstated it.

●●●○Evidence: Supported

Across about 1,000 trials, physical activity produced moderate drops in depression and anxiety. The "1.5 times more effective than medication" line came from a press release, not the paper.

What the research found

An overview of 97 reviews, covering 1,039 trials and 128,119 people, found physical activity reduced symptoms of depression and anxiety by a moderate amount (median effect sizes about −0.43 and −0.42). The paper called the effects comparable to, or slightly larger than, therapy and medication. That comparison was made across different studies, not in head-to-head trials. The “1.5 times more effective” claim came from the university press release.

A later network meta-analysis of 218 trials in people with clinically significant depression found the largest effects for walking or jogging, yoga, and strength training, with higher intensity doing more.

How strong is this?

Supported, with a real caveat. The direction of the effect is consistent. The quality underneath is weaker: 77 of the 97 reviews were rated critically low quality, and the network meta-analysis rated its confidence low to very low for most exercise types. Few trials could blind participants, so expectation effects can’t be ruled out.

What it does and doesn’t mean

Movement belongs alongside therapy and medication as a core treatment for depression. For some people it’s the main lever; for others it supports one. The evidence doesn’t support telling someone to stop their medication and go for a run.

Sources

1. Singh et al. 2023, British Journal of Sports Medicine 57(18):1203–1209
2. Noetel et al. 2024, BMJ 384:e075847